126401165 has 8 divisors (see below), whose sum is σ = 165470688. Its totient is φ = 91928080.

The previous prime is 126401159. The next prime is 126401183. The reversal of 126401165 is 561104621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126401165 - 2¹⁴ = 126384781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1149047 + ... + 1149156.

It is an arithmetic number, because the mean of its divisors is an integer number (20683836).

Almost surely, 2^126401165 is an apocalyptic number.

It is an amenable number.

126401165 is a deficient number, since it is larger than the sum of its proper divisors (39069523).

126401165 is a wasteful number, since it uses less digits than its factorization.

126401165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298219.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 126401165 is about 11242.8272689747. The cubic root of 126401165 is about 501.8612826562.

Adding to 126401165 its reverse (561104621), we get a palindrome (687505786).

The spelling of 126401165 in words is "one hundred twenty-six million, four hundred one thousand, one hundred sixty-five".